// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-weakmap-iterable
description: >
  If the iterable argument is empty, return new WeakMap object.
info: |
  23.3.1.1 WeakMap ( [ iterable ] )

  ...
  9. Repeat
    a. Let next be IteratorStep(iter).
    b. ReturnIfAbrupt(next).
    c. If next is false, return map.
  ...
---*/

function Test() {
    var counter = 0;
    var set = WeakMap.prototype.set;
    WeakMap.prototype.set = function(value) {
      counter++;
      return set.call(this, value);
    };
    var map = new WeakMap([]);

    assert.sameValue(Object.getPrototypeOf(map), WeakMap.prototype);
    assert(map instanceof WeakMap);
    assert.sameValue(
      counter, 0,
      'empty iterable does not call WeakMap.prototype.set'
    );
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
